package cn.le.container;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Created by admin on 2017/7/10.
 */
public class CountedString {

    private static List<String> created = new ArrayList<>();
    private String s;
    private int id = 0;

    public CountedString(String str)
    {
        s = str;
        created.add(s);
        for (String s2 : created)
        {
            if(s2.equals(s))
            {
                id++;
            }
        }
    }
    public String toString()
    {
        return "String:"+s+" id:"+id+" hashCode():"+hashCode();
    }

    public int hashCode()
    {
        int result = 17;
        result = 37 * result + s.hashCode();
        result = 37 * result + id;
        return result;
    }
    public boolean equals(Object obj)
    {
        //重新equals方法,比较对象的值是否相同
        return obj instanceof CountedString && s.equals(((CountedString) obj).s)
                && id == ((CountedString)obj).id;

    }

    public static void main(String[] args) {

        Map<CountedString,Integer> map = new HashMap<>();
        CountedString[] cs = new CountedString[5];

        for (int i = 0;i < cs.length; i++)
        {
            cs[i] = new CountedString("hi");
            map.put(cs[i],i);
        }

        System.out.println(map);

        for (CountedString cstring : cs)
        {
            System.out.println("Looking up "+ cstring);
            System.out.println(map.get(cstring));
        }

    }

}
